Finding the Fourth Proportional to 723,121.20, 1,084,893.96 and 323,673.09
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Solution
The fourth proportional to 723,121.20, 1,084,893.96 and 323,673.09 is: 485,604.60
Step by Step Solution
- Step 1: Write the proportion equation
723,121.20 : 1,084,893.96 = 323,673.09 : x - Step 2: Convert to fraction form
723,121.20/1,084,893.96 = 323,673.09/x - Step 3: Cross multiply
723,121.20x = 1,084,893.96 × 323,673.09 - Step 4: Simplify right side
723,121.20x = 351,150,980,355.54 - Step 5: Solve for x
x = 351,150,980,355.54/723,121.20 - Step 6: Final answer
x = 485,604.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.